Any one had issues with flashing the 4runner ECU ? Had it go through the initial pace , where to key off , wait 10 sec , and key on . Then it says cntl : Failed to Intl.
First ECU was blanked out . Could not read or connect with dealer tools.
Got a second ECU , and re did VIN .. started Tuning and after 8 successful writes ... same thing. Bricked.
Any ideas from others as to why this is happening ? Done may toyotas before , and never had this much trouble .
Strong Internet Connection , undid battery terminal as per request.
Dialing in a TRD Pro wth 1050 ID Injectors and Whipple Supercharger.